/*
 * Copyright (c) 2013, SRI International
 * All rights reserved.
 * Licensed under the The BSD 3-Clause License;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 * 
 * http://opensource.org/licenses/BSD-3-Clause
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the aic-web-praise nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.sri.ai.lpitools.gwtgui.client.view;

import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.place.shared.PlaceHistoryMapper;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.DockLayoutPanel;
import com.google.gwt.user.client.ui.Label;
import com.sri.ai.lpitools.cobra.gwtutil.dataobjects.shared.UserInfo;
import com.sri.ai.lpitools.gwtgui.client.Toolkit;
import com.sri.ai.lpitools.gwtgui.client.components.MainView;
import com.sri.ai.lpitools.gwtgui.client.components.manager.UserListener;
import com.sri.ai.lpitools.gwtgui.client.components.menubar.SRILogInMenuBar;
import com.sri.ai.lpitools.gwtgui.client.components.menubar.SRIMenuBar;




public class MainPageImpl extends Composite implements MainPage {
	
	DockLayoutPanel mainPanel = new DockLayoutPanel(Unit.EM);

//	private Presenter presenter;
	private final SRIMenuBar menuBar;
	private final SRILogInMenuBar logInMenuBar;
	private final MainView modelView;
	private String currentModelText;
//	private PlaceHistoryMapper placeHistoryMapper;
    public MainPageImpl(Toolkit toolkit) {    	
		menuBar = new SRIMenuBar(toolkit.getModelManager(), toolkit.getAicManager(), toolkit.getUserManager());
		logInMenuBar = new SRILogInMenuBar(toolkit.getModelManager(), toolkit.getAicManager(), toolkit.getUserManager());
		// build the tap layout Panel and the menu bar
		modelView = new MainView(toolkit);
		modelView.setSize("100%", "100%");
		
//		//set width of menubar to 100% of browser
		menuBar.setWidth("100%");
		logInMenuBar.setWidth("100%");
		//create a simple panel to show the currently logged in user
		
		final Label userLabel = new Label("Please log in");
		toolkit.getUserManager().addUserListener(new UserListener() {
			@Override
			public void loggedInUserChanged(UserInfo newUser) {
				if (newUser != null) {
					userLabel.setText(newUser.getUser());
				} else {
					userLabel.setText("Please log in");
				}
			}
		});
		if(toolkit.getUserManager().getCurrentUser() != null){
			userLabel.setText(toolkit.getUserManager().getCurrentUser().getUser());
		}
		userLabel.setStylePrimaryName("userLabel");
		
		DockLayoutPanel topPanel = new DockLayoutPanel(Unit.PX);
		DockLayoutPanel topPanel2 = new DockLayoutPanel(Unit.PX);
		
		
		topPanel2.addWest(userLabel,150);
		topPanel2.add(logInMenuBar);
		
		topPanel.addEast(topPanel2,250);
		
		topPanel.add(menuBar);
		
		
		mainPanel.addNorth(topPanel, 2);
		mainPanel.add(modelView);

		initWidget(mainPanel);
		
		
    }


    @Override
    public void setPresenter(Presenter presenter) {
//            this.presenter = presenter;

            
    }
    @Override
    public void updateView(){
    	if(this.currentModelText != null){
    		this.modelView.updateEditor(this.currentModelText);
    	}
    }


	@Override
	public void setCurrentModelText(String currentText) {
		this.currentModelText = currentText;
		
	}
	
	@Override
	public void setPlaceHistoryMapper(PlaceHistoryMapper placeHistoryMapper) {
//		this.placeHistoryMapper = placeHistoryMapper;
		menuBar.setPlaceHistoryMapper(placeHistoryMapper);
	}
}
